Marketing Strategy & Plan for a B2B Startup

We are an early-stage B2B hard-tech startup developing equipment for reducing 3D printing plastic waste in various sectors. We want students to help us build a  marketing strategy and a plan  suitable for our target market, which seems to be mostly driven by direct sales . The plan could, but does not have to , include recommending updates to our current messaging and branding that can better resonate with our market, as well as an execution timeline & budget plan.